Predictions for 5.3?

[MrThinker]

Has no aether? Well, that can't be true. There are beings there that do have aether, so there's aether in the form of living aether.

Voidsent are alive in the same way Sin Eaters are, i.e. not at all, Vauthry being a twisted exception till he fully turns into Innocence.

It's more likely that they just haven't completed a storyboard for it yet.

They have completed it, since patch 3.5 when we learn of Unulkalhai's true origins

The star I failed to save is known to you now as “the void.”
Though (Forename) knew not that I spoke of my homeland, I have explained to him before the cause of its ruin. A magick was devised to contain a defeated primal's might within a stone known as “auracite.” And the energies which bled from this imperfect vessel gradually corrupted the champions who wielded it.
These heroes became slaves to an insatiable hunger for aether, eventually transforming into hideous fiends. And none who clung to the faint traces of Light were strong enough to oppose them.
The demons next turned upon each other in a war which drained the land's aether in ever greater amounts, until one day the star was suddenly swallowed in a flood of Darkness. An entire world unmade in an instant.
The voidsent you encounter here in this realm are the twisted remnants of once-mortal beings who gnaw on what motes of life force remain...

The Dark void that we know is void of aether, but you still have the people and animals that were there and they’re aether-starved and trying to break through into our world and suck that aether back into their own.

Yes, it is possible that they retcon this, but as far as we know, they have not, and until then I am staying with what we know.